Computational Crystal Plasticity for the Design of Material and Processes - Difference between revisions of "Contents 2016p" - Colloquiam

Computational Crystal Plasticity for the Design of Material and Processes

Videos of Plenary Lectures presented at the XIII International Conference on Computational Plasticity (COMPLAS 2015)

The macroscale mechanical behaviour of crystalline materials, such as polycrystalline metals and single crystal semiconductors, is dictated by the anisotropic behaviour of individual crystals/grains and their interactions with neighboring crystals or other materials. Furthermore, the elastic-plastic response of individual crystals is associated with the underlying atomic lattice structure and phenomena of dislocation glide on the slip systems and dislocation multiplication and interactions. As a result, microstructural characteristics such as grain size, shape, and orientation, have a significant effect on the macroscale mechanical properties and performance. Moreover, these microstructural features are strongly affected by the thermal-mechanical process used to create a part. Because of this, tremendous effort has been made to develop crystal plasticity models that explicitly model the crystal (grain) scale behavior to predict the local macroscale response. In this talk, a framework for computational modelling of discretized single or polycrystal grain structures subjected to thermal-mechanical loading conditions is presented. The model is general for finite deformations with the crystal plasticity model based on dislocation motion and interactions. A parallel finite element implementation is briefly described. Then, applications including predicting microstructure evolution during large deformation processing, fatigue crack initiation, and defect formation during single crystal AlN crystal growth will be presented

A. Maniatty, P. Karvani, D. Pyle

Revision as of 10:43, 18 July 2016

Recording of the presentation

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Location: Technical University of Catalonia (UPC), Vertex Building.

Date: 1 - 3 September 2015, Barcelona, Spain.

General Information

Location: Technical University of Catalonia (UPC), Barcelona, Spain.
Date: 1 - 3 September 2015
Secretariat: CIMNE Centre Internacional de Metodes Numerics.

External Links

Complas XIII Official Website of the Conference.
CIMNE Multimedia Channel

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Document information

Published on 29/06/16

Licence: CC BY-NC-SA license

Categories

Engineering, Aerospace

Engineering, Civil

Engineering, Mechanical

Keywords

Computational crystal plasticity